Table A.1.
Number of selected AGN candidates per criteria.
| Data | Diagnostic | EDF-N | EDF-S | EDF-F | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 18< IE≤21 | 21< IE≤22 | 22< IE≤24.5 | 18< IE≤21 | 21< IE≤22 | 22< IE≤24.5 | 18< IE≤21 | 21< IE≤22 | 22< IE≤24.5 | ||
| Photometry | PRFa | 138 | 1882 | 44 429 | 161 | 2838 | 37 869 | 59 | 1476 | 17 694 |
| B24A | 1085 | 2038 | 12 146 | 1210 | 2113 | 13 155 | 480 | 886 | 4690 | |
| B24B | 658 | 997 | 8178 | ... | ... | ... | ... | ... | ... | |
| C75 | 1106 | 2081 | 10 888 | 2149 | 3379 | 17 031 | 1278 | 1639 | 7561 | |
| R90 | 498 | 196 | 405 | 792 | 347 | 690 | 399 | 204 | 579 | |
| GDR3-QSOs | 606 | 35 | 3 | 769 | 42 | 0 | 442 | 68 | 0 | |
| JH_IEY | 1084 | 1789 | 15 599 | 1244 | 2369 | 18 236 | 509 | 980 | 6888 | |
| IEH_gz | 591 | 909 | 6802 | 787 | 1247 | 9340 | 400 | 611 | 4323 | |
| Total | 2547 | 6474 | 80 184 | 3410 | 8505 | 80 390 | 1697 | 3995 | 34 854 | |
| Spectroscopyb | SPECTYPE: QSO | 400 | 484 | 673 | ... | ... | ... | ... | ... | ... |
| Broad-line QSO | 366 | 460 | 603 | ... | ... | ... | ... | ... | ... | |
| Broad-line Galaxy | 57 | 48 | 113 | ... | ... | ... | ... | ... | ... | |
| NII BPT | 93 | 1 | 1 | ... | ... | ... | ... | ... | ... | |
| SII BPT | 69 | 0 | 5 | ... | ... | ... | ... | ... | ... | |
| OI BPT | 72 | 3 | 38 | ... | ... | ... | ... | ... | ... | |
| WHAN | 1792 | 12 | 14 | ... | ... | ... | ... | ... | ... | |
| Blue | 104 | 47 | 103 | ... | ... | ... | ... | ... | ... | |
| KEX | 188 | 110 | 467 | ... | ... | ... | ... | ... | ... | |
| Total | 2250 | 636 | 1350 | ... | ... | ... | ... | ... | ... | |
| Other Q1 selections | X-raysc | 62 | 72 | 210 | 625 | 425 | 609 | 447 | 520 | 1973 |
| Diffusion modelsd | 1831 | 2078 | 1326 | 3435 | 2678 | 1609 | 1400 | 1012 | 571 | |
| Deep learninge | 494 | 2813 | 12 779 | 650 | 3361 | 15 043 | 232 | 1464 | 6721 | |
| Total | 2303 | 4566 | 13 700 | 4179 | 5691 | 16 169 | 1759 | 2471 | 7325 | |
| SED fitting | AGN fractionf | 2172 | 1218 | 4166 | ... | ... | ... | ... | ... | ... |
Notes. (a)PRF selected QSOs: Euclid Collaboration: Tucci et al. (2026). (b)All Spectroscopic diagnostics rely on the DESI CTPs and their corresponding SPECTYPE labelling. (c)X-ray selected AGN candidates: Euclid Collaboration: Roster et al. (2026). (d)AGN candidates from diffusion models trained on VIS data: Euclid Collaboration: Stevens et al. (2026). (e)AGN candidates from deep learning trained on IllustrisTNG: Euclid Collaboration: Margalef-Bentabol et al. (2026). (f)AGN candidates from AGN fraction threshold: Euclid Collaboration: Laloux et al., in prep.
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